Hud · 93

وَيَٰقَوۡمِ ٱعۡمَلُواْ عَلَىٰ مَكَانَتِكُمۡ إِنِّي عَٰمِلࣱۖ سَوۡفَ تَعۡلَمُونَ مَن يَأۡتِيهِ عَذَابࣱ يُخۡزِيهِ وَمَنۡ هُوَ كَٰذِبࣱۖ وَٱرۡتَقِبُوٓاْ إِنِّي مَعَكُمۡ رَقِيبࣱ‏

And O my people! Do whatever ye can: I will do (my part): Soon will ye know who it is on whom descends the penalty of ignominy; and who is a liar! and watch ye! for I too am watching with you